Programatically created UILabel within UIView not updating

I have a UIView embedded within a UIViewController. The process is follows:

1. UIView loads with parent UIVieController
2. UIView class creates label and other graphics programatically
3. UIViewController received a notification that a value has updated
4. The UIViewController runs a func within the UIViews class

The issue is the UIView label does not update with the value being sent to it. I have checked (see the print line) and the correct values is being received.

//  TemperatureUIView.swift

import UIKit

class TemperatureUIView: UIView {

var tempLabel : UILabel!

override init(frame: CGRect) {
    super.init(frame: frame)
    setup()
}

required init(coder: NSCoder) {
    super.init(coder: coder)!
    setup()
}

func setup(){
    drawBaseCircle()
    drawTempLabel()
}

func drawBaseCircle(){

    //Temperature Base Ring
    let baseCircle = CAShapeLayer()
    let baseCirclePath = UIBezierPath()
    let baseCircleRadius :CGFloat = (self.frame.height/2)-10

    baseCirclePath.addArcWithCenter(CGPoint(x: CGFloat(self.frame.width/2), y: CGFloat(self.frame.height/2)), radius: CGFloat(baseCircleRadius), startAngle: CGFloat(-M_PI_2), endAngle:CGFloat(M_PI_2*3), clockwise: true)
    baseCircle.path = baseCirclePath.CGPath
    baseCircle.fillColor = UIColor.clearColor().CGColor
    baseCircle.strokeColor = UIColor.lightGrayColor().CGColor
    baseCircle.lineWidth = 10.0
    self.layer.addSublayer(baseCircle)
}

func drawTempLabel(){
    tempLabel = UILabel(frame: CGRect(origin: CGPoint(x: 0, y:0), size: CGSize(width: 40, height: 40)))
    tempLabel.frame.origin = CGPoint(x: (self.frame.width / 2)-(tempLabel.frame.size.width/2), y: (self.frame.height / 2)-(tempLabel.frame.size.height/2))
    tempLabel.font = UIFont.boldSystemFontOfSize(15.0)
    tempLabel.textAlignment = NSTextAlignment.Center
    tempLabel.textColor = UIColor.whiteColor()
    tempLabel.tag = 101
    tempLabel.layer.name = "temperatureDisplay"
    self.addSubview(tempLabel)
    self.bringSubviewToFront(tempLabel)

    tempLabel.text = "---"
}

func setTemp(rawValue: NSData){

    var buffer8LSB : UInt8 = 0
    rawValue.getBytes(&buffer8LSB, range : NSMakeRange(5, 1))

    if (self.viewWithTag(101) != nil ){
        tempLabel.text = ("(String(format: "%.0f", Float(buffer8LSB)))")
        print ("(String(format: "%.0f", Float(buffer8LSB)))")
    }
}
}

This is called from the parent UIViewController by:

func eDataReceivedBLE(notification: NSNotification) {

    let characteristic = notification.userInfo!["characteristic"] as! CBCharacteristic
    //let peripheral = notification.userInfo!["peripheral"] as! CBPeripheral

    TemperatureUIView().setTemp(characteristic.value!)

}

And the notification within the UIViewController is:

NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(PluginMotionDataViewController.eDataReceivedBLE(_:)), name: "EdataReceived", object: nil)

Any thoughts or guidance...